Organocatalytic intramolecular [4+2]-cycloaddition between in situ generated vinylidene ortho‐quinone methides and benzofurans.

DOI Number:

10.1002/anie.201707523

Reaction Category:

MOP ID:

MOP_0000565

Educt:

1-((2-(naphtho[2,1-b]furan-2-yl)phenyl)ethynyl)naphthalen-2-ol

Product:

(12aR,19aS)-5,5a-dihydro-12aH-benzo[f]indeno[1,2-c]naphtho[1',2':4,5]furo[3,2-b]chromene

Catalyst:

N-[3,5-Bis(trifluoromethyl)phenyl]-N′-[(8α,9S)-6′-methoxycinchonan-9-yl]thiourea

Cas No:

852913-16-7

Cas No:

130-95-0